Since its establishment in 2015, the Eurasian Economic Union has achieved growing cooperative power, expanding cooperative scale, and increased cooperative results. In this regard, the regional integration under the framework of the Eurasian Economic Union has certain effectiveness. However, the limits of its development are also emerging. Currently, the routine power for trade has been handed over to the Eurasian Economic Commission. In many fields like energy, investment, and service trade, the policy coordination among the member states is also improving, which helps to build a common market. Hence, the original “one-to-one” bilateral cooperation between China and the member states of the Eurasian Economic Union method is gradually being replaced by “one-to-five” multilateral cooperation. The normative power of the union is accordingly increased significantly. For China, maintaining good interaction with the Eurasian Economic Union is beneficial to the improvement of its surrounding environment in the “Three Norths” (Northeast, North, and Northwest). To this order, China should take advantage of the “open” side of the union and reasonably respond to the “exclusiveness” of the union.